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Andre45 [30]
3 years ago
13

Evaluate the expression 4b-6d if b = 7 and d=3

Mathematics
1 answer:
viktelen [127]3 years ago
3 0

Answer:

<em>1</em><em>0</em>

Step-by-step explanation:

4*7 - 6*3

\/ \/

28 - 18

\ /

= 10

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Find the area of the parallelogram with vertices:________.
marin [14]

Answer:

97.98

Step-by-step explanation:

The area of the parallelogram PQR is the magnitude of the cross product of any two adjacent sides. Using PQ and PS as the adjacent sides;

Area of the parallelogram = |PQ×PS|

PQ = Q-P and PS = S-P

Given P(0,0,0), Q(4,-5,3), R(4,-7,1), S(8,-12,4)

PQ = (4,-5,3) - (0,0,0)

PQ = (4,-5,3)

Also, PS = S-P

PS = (8,-12,4)-(0,0,0)

PS = (8,-12,4)

Taking the cross product of both vectors i.e PQ×PS

(4,5,-3)×(8,-12,4)

PQ×PS = (20-36)i - (16-(-24))j + (-48-40)k

PQ×PS = -16i - 40j -88k

|PQ×PS| = √(-16)²+(-40)²+(-88)²

|PQ×PS| = √256+1600+7744

|PQ×PS| = √9600

|PQ×PS| ≈ 97.98

Hence the area of the parallelogram is 97.98

3 0
3 years ago
Select the three correct ways to describe an angle with a measure of 13°.
9966 [12]

Answer:

acute, small, and 13•

Step-by-step explanation:

hope this helps^^

4 0
3 years ago
Name the minor arc and find it's measure.
Vladimir79 [104]
Based on the given figure, the minor arc is AB and its measure is 115°.

Minor arc is the arc that is less than half of the circle or less than 180°.
Major arc is the arc that is more than 180°. In this case, the major arc is ADB. Its measure is the difference of 360° and the minor arc, 245°
6 0
3 years ago
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Can someone help fast to find a and c
Kisachek [45]

Answer: 15 10

Step-by-step explanation:                        

8 0
3 years ago
If the greatest value the variable m can be is less than 9, which of the following inequalities best shows all the possible valu
BigorU [14]

m < 9 The first one is the answer

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3 years ago
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